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湘钢炼铁厂一号高炉投产于1977年10月,迄今已运行12年。维持高炉安全的冷却壁系统,因长年使用和循环水质较差,内管壁和管路接合部结垢严重,进出水温差已远远超出原设计2℃的标准。由于内部阻力较大,严重影响正常的循环散热,特别处于炉缸高温区的1、2、3段冷却壁,经测定:每块通水量只有0.5～0.95kg/s,只及正常通水量的1/4～1/3,直接威胁高炉的安全生产。为解决这一问题,厂方曾先后采用高压喷砂、高压水冲刷和高压吹风等办法除垢,均未取得明显成效。为此,湘钢公司曾责成有关部门组
The No. 1 BF of Xiangtan Iron and Steel Co., Ltd. was put into operation in October 1977 and has been in operation for 12 years. Maintaining the safety of the blast furnace cooling stave system, due to poor use and recycling water quality for many years, serious fouling of the inner pipe wall and pipe joints, water temperature difference has far exceeded the original design 2 ℃ standard. As the internal resistance is larger, seriously affecting the normal circulation of heat, especially in the hearth high temperature zone 1, 2, 3 sections of the cooling wall, the determination of: each water flow of only 0.5 ~ 0.95kg / s, and only the normal amount of water 1/4 ~ 1/3, a direct threat to the blast furnace safety. To solve this problem, the factory has successively adopted high pressure sandblasting, high pressure water scouring and high pressure blowing and other methods of descaling, and no significant results were achieved. To this end, Xiangtan Iron and Steel Company has instructed the relevant departments